22450315225421 has 4 divisors (see below), whose sum is σ = 22453546888512. Its totient is φ = 22447083562332.

The previous prime is 22450315225411. The next prime is 22450315225447. The reversal of 22450315225421 is 12452251305422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22450315225421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450315225411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1615821125 + ... + 1615835018.

It is an arithmetic number, because the mean of its divisors is an integer number (5613386722128).

Almost surely, 2^{22450315225421} is an apocalyptic number.

It is an amenable number.

22450315225421 is a deficient number, since it is larger than the sum of its proper divisors (3231663091).

22450315225421 is an equidigital number, since it uses as much as digits as its factorization.

22450315225421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231663090.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 22450315225421 in words is "twenty-two trillion, four hundred fifty billion, three hundred fifteen million, two hundred twenty-five thousand, four hundred twenty-one".